Siemens SQM40 Series User manual

CC1N7817en

24.02.2015

Building Technologies Division

7817

ctuator SQM40.../SQM41...

Actuators for air and gas

dampers

SQM40...

SQM41...

Electromotoric actuator up to 18 Nm torque

Clockwise and counterclockwise variants

Running times from 5 up to 65 seconds

Different shaft ends available

Electronic version with analog control input

Internal position indication

Drive shaft can be disengaged

Variants with UL and CSA approval, as well as GL marine approval

The SQM40.../SQM41… and this Data Sheet are intended for use by OEMs which

integrate the actuators in their products!

Use

The SQM40.../SQM41... actuators are suited for driving oil pressure controller, butterfly

valves, dampers or for use on other applications that require rotary motion.

Areas of application are oil and gas burners of medium to higher capacity as well as

thermal process plants.

The actuators are used primarily for load-dependent control of the flow of gas, oil and

combustion air:

In connection with 3-position or modulating controllers (e.g. 4...20 mA), and/or ...

... directly by burner controls

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Supplementary documentation

Product type Type of documentation Documentation number

SQM45... / SQM48... Data Sheet N7814

SQM10... / SQM20... Data Sheet N7812

ASZ... Data Sheet N7921

ASZ22.3x Mounting Instruction 4 319 9604 0 (M7921)

Warning notes

To avoid injury to persons, damage to property or the environment, the following

warning notes must be observed!

Only qualified personnel may open, interfere with or modify the actuators!

Read the documentation on the actuators carefully and fully. If not observed,

dangerous situations might occur

The user must ensure that the actuators meet the requirements of the relevant

application standards

Safety-related applications are only available with Siemens burner controls!

All product-related activities (mounting, settings and maintenance) must be

performed by qualified and authorized personnel

Caution!

Risk of electric shock hazard – to disconnect the actuator from power, it may be

necessary to open more than one switch. Before performing maintenance work,

the actuator must be disconnected from power

The electrical connection between the conduit fittings is not made automatically.

It must be established on installation site

The connecting plate is made of plastic and does not provide earthing of the

conduit fittings. Earthing must be ensured by adequate washers and wire links

All cam switch settings must satisfy the requirements of the relevant application

standards

To provide protection against electric shock hazard, the connecting terminals must

have adequate touch protection. Make certain that non-insulated connections or

wires cannot be touched

Each time work has been carried out (mounting, installation, service work, etc.),

check to ensure that wiring is in an orderly state

Fall or shock can adversely affect the safety functions. Such actuators must not be

put into operation even if they do not exhibit any damage

Static charges must be avoided since they can damage the actuator’s electronic

components when touched.

Recommendation: Use ESD equipment

Notes on use in North America

Use of flexible conduit including adequate accessories is mandatory

Use of copper wiring is mandatory

All circuits of class 2 must use cables type CL3, CL3R, CL3P or comparable types,

All circuits are wired according to class 1 (electrical light or power circuits)

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Mounting notes

Ensure that the relevant national safety regulations and notes on standards are

complied with

In geographical areas where DIN regulations apply, the mounting and installation

requirements of VDE must be satisfied, especially DIN/VDE 0100, 0550 and

DIN/VDE 0722

Make certain that the actuator is not exposed to direct solar radiation

Required tightening torques for the fixing screws of the

- housing cover: 3.5 Nm

- connecting cover: 2 Nm

Note!

Ensure correct direction of rotation!

SQM40… (left, CCW) SQM41… (right, CW)

0°

135°

0°

135°

90°

Installation notes

Ensure that the electrical wiring is in compliance with national and local safety

regulation

Make certain that strain relief of the connected cables conforms to the relevant

standards (e.g. as per DIN EN 60730 and DIN EN 60335)

Ensure that spliced wires cannot get into contact with neighboring terminals. Use

adequate ferrules

Unused terminals of the SQM40.../SQM41... must be covered by dummy plugs

When making the wiring, the AC 120 V or AC 230 V section must be separated from

other voltage sections, thus ensuring protection against electric shock hazard

The connection between the actuator drive shaft and the relevant controlling element

must be form-fitted

Only plastic versions of cable glands may be used

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Electrical connection

The actuators must always be powered via a prefuse of max. 6.3 AT

(as per DIN EN 6012- 2/5)

For the protective earth connection, the housing of all variants has a marked PE

connecting terminal. A tightening torque of 1.2 Nm must be observed for fitting the

screw

The supplied RAST3.5 connectors or RAST5 connectors must be used with screw

terminals for electrical connections. A tightening torque of 0.25 Nm must be

observed for fitting the screw

Note!

The connection of fuel valves is only permitted on fused output terminals, see chapter

Connection diagrams. For this purpose, specific unit variants are available fitted with

a unit-internal, non-replaceable fuse. The unit-internal fuse is used to protect each

switching contact from welding in the event of external short-circuit. In addition,

please note that the maximum current load for the fused output terminals is reduced,

see chapter Connection diagrams.

Marking of the SQM40... / SQM41... connection areas:

SELV / PELV

Mains voltage range

SQM4x.x1xxxx

SQM4x.x2xxxx

SQM4x.x4xxxx

SQM4x.x5xxxx:

X1, X2, X3

Mains voltage range

7817z09e/0315

SQM4x.x3xxx

SQM4x.x6xxxx

SQM4x.x7xxxx

SQM4x.x8xxxx:

Note

SELV or PELV depends on the safety class of the connected components. In the

case of PELV, the relevant component is connected to protective earth.

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Cam settings

The mechanical setting facility for the cams is physically separated from the connection

terminals. When the actuator is disconnected from power, the switches can be adjusted

via a scale. The cams can be changed via adjusting screws. The scale indicates the

angles of the switching points.

Standards and certificates

Conformity to EEC directives

- Electromagnetic compatibility EMC (immunity)

- Low-voltage directive

2004/108/EC

2006/95/EC

ISO 9001:2008

ISO 14001:2004

OHSAS 18001:2007

For use in US/Canada where the power supply lines require a connection facility for

flexible conduit, the actuator's product no. includes type suffix «R» (see following

example). These products are UL-listed.

For types marked with R

Example: SQM40.264R10

For types marked with 36 or 38

Examples: SQM4x.36xA2x, SQM4x.38xA2x

For marine applications, environmental category A.

Lifetime

The actuator has a designed lifetime* of 250,000 start cycles

(close open close) under load with the rated torque in the entire rotation angle

range, which under normal operating conditions in heating mode corresponds to approx.

10 years of usage (starting from the date of manufacture on the device type plate). This

lifetime is based on the endurance tests specified in standard EN 298.

A summary of the conditions has been published by the European Control Manufacturers

Association (Afecor - www.afecor.org).

The designed lifetime is based on use of the actuator according to the manufacturer’s

Data Sheet. After reaching the designed lifetime in terms of the number of startup cycles,

or the respective time of usage time, the actuator is to be replaced by authorized

personnel.

* The designed lifetime is not the warranty time specified in the Terms of Delivery.

Disposal notes

The unit contains electrical and electronic components and must not be disposed of

together with domestic waste.

Local and currently valid legislation must be observed.

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Mechanical design

Lower housing part made of die-cast aluminum

Housing cover made of impact-proof and heat-resistant plastic

Synchronous motor

Shaft can be manually disengaged from the motor by operating the coupling

(coupling pin (K1))

Automatic reengagement

Disengagement of drive shaft / motor by pressing coupling pin «K1»

Coupling pin "K1"

Earth terminal „PE“

Earth terminal (PE) with screw fitting

Non-reactive gear

With adjustable cams

Scales beside the cams indicate the angle of the switching point

Internally

– Scale 0...135° at the end of the cam assembly

– Scale range to direction of rotation with arrow marking for SQM41 or with marking

in slot die for SQM40

RAST3.5 screw terminals are factory supplied, depending on the PCB variant

RAST5 screw terminals are factory supplied, depending on the PCB variant

Optional: Insulation displacement connectors

Cable entry by means of 2 openings in the connector cover supplied.

The cable glands are not included in the scope of delivery

Large openings in the housing allow easy cable installation

Maintenance-free gearwheels and bearings.

Different shaft versions available, shafts are supplied assembled

Drive shaft is not replaceable

Mounting holes on the lower side of the housing (shaft side), such as actuators

SQM45... / SQM48... using M5 screws, or alternatively as actuators SQM10... / SQM20...

front mounting using M5 self-tapping screws (see chapter Dimensions).

Housing

Drive motor

Coupling

Earthing connection

Cam shaft drive

djustment of

switching points

Position indicator

Electrical

connections

Gear train

Drive shaft

ctuator fixing

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Type summary (other types on request)

Product no.

Direction of

rotation

Torque ¹) /

running time ¹) for 90°

PCB

Shaft no.

Regional

version

Operating

voltage

Potentio-

meter

Countercloc

kwise

Clockwise

Electronic

no.

Switch no.

3-position

2-position

No. of

switches

No. of relay

US / Canada

AC120V

AC230V

Double 90°

Double 135°

SQM40.025A21 *) 2.5Nm/5s 2 4 5 

SQM40.065A23 *) 2.5Nm/5s 6 6 5 

SQM40.115R11 5Nm/15s 1 3 5 **) 

SQM40.115R13 5Nm/15s 1 3 5 **) 

SQM40.141A21 5Nm/15s 4 3 1  

SQM40.144R11 5Nm/15s 4 3 4 

SQM40.145A21 5Nm/15s 4 3 5 

SQM40.145R11 5Nm/15s 4 3 5 

SQM40.155R11 5Nm/15s 5 4 5 **) 

SQM40.155R13 5Nm/15s 5 4 5 **) 

SQM40.161A20 5Nm/15s 6 6 1 

SQM40.164R11 5Nm/15s 6 6 4 

SQM40.165A20 5Nm/15s 6 6 5 

SQM40.165A21 5Nm/15s 6 6 5  

SQM40.165R11 5Nm/15s 6 6 5 

SQM40.171A20 5Nm/15s 7 5 1 1 

SQM40.174R10 5Nm/15s 7 5 1 4 

SQM40.175A21 5Nm/15s 7 5 1 5 

SQM40.185R11 5Nm/15s 8 6 5 **) 

SQM40.215R11 10Nm/30s 1 3 5 **) 

SQM40.215R13 10Nm/30s 1 3 5 **) 

SQM40.235A20 10Nm/30s 3 4 3 5 

SQM40.241A11 10Nm/30s 4 3 1 

SQM40.241A21 10Nm/30s 4 3 1 

SQM40.241R11 10Nm/30s 4 3 1 

SQM40.244A21 10Nm/30s 4 3 4  

SQM40.244R11 10Nm/30s 4 3 4 

SQM40.245A11 10Nm/30s 4 3 5 

SQM40.245A21 10Nm/30s 4 3 5 

SQM40.245R11 10Nm/30s 4 3 5 

SQM40.247A21 10Nm/30s 4 3 7 

SQM40.255A21 10Nm/30s 5 4 5 

SQM40.255R11 10Nm/30s 5 4 5 **) 

SQM40.255R13 10Nm/30s 5 4 5 **) 

SQM40.261A11 10Nm/30s 6 6 1 

*) On request

**) CSA approval in process

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Type summary (other types on request) (cont’d)

Product no.

Direction

of rotation

Torque ¹) /

running time ¹) for 90°

PCB

Shaft no.

Regional

version

Operating

voltage

Potentio-

meter

Countercloc

kwise

Clockwise

Electronic

no.

Switch no.

3-position

2-position

No. of

switches

No. of relay

US / Canada

AC120V

AC230V

Double 90°

Double 135°

SQM40.261A20 10Nm/30s 6 6 1 

SQM40.261A21 10Nm/30s 6 6 1 

SQM40.261R11 10Nm/30s 6 6 1 

SQM40.264A21 10Nm/30s 6 6 4 

SQM40.264R11 10Nm/30s 6 6 4 

SQM40.265A11 10Nm/30s 6 6 5 

SQM40.265A20 10Nm/30s 6 6 5 

SQM40.265A21 10Nm/30s 6 6 5 

SQM40.265R11 10Nm/30s 6 6 5 

SQM40.267A20 10Nm/30s 6 6 7 

SQM40.271A20 10Nm/30s 7 5 1 1 

SQM40.271R10 10Nm/30s 7 5 1 1 

SQM40.274R10 10Nm/30s 7 5 1 4 

SQM40.275A20 10Nm/30s 7 5 1 5 

SQM40.275A21 10Nm/30s 7 5 1 5 

SQM40.275R10 10Nm/30s 7 5 1 5 **) 

SQM40.281A20 10Nm/30s 8 6 1 

SQM40.285R11 10Nm/30s 8 6 5 **) 

SQM40.317A23 18Nm/65s 1 3 7 

SQM40.317R11 18Nm/65s 1 3 7 **) 

SQM40.317R13 18Nm/65s 1 3 7 **) 

SQM40.357R11 18Nm/65s 5 4 7 **) 

SQM40.357R13 18Nm/65s 5 4 7 **) 

SQM40.387A20 18Nm/65s 8 6 7 

SQM40.387A23 18Nm/65s 8 6 7 

SQM40.387R11 18Nm/65s 8 6 7 **) 

**) CSA approval in process

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Type summary (cont´d) (other types on request) (cont’d)

Product no.

Direction

of rotation

Torque ¹) /

running time ¹) for 90°

PCB

Shaft no.

Regional

version

Operating

voltage

Potentio-

meter

Countercloc

kwise

Clockwise

Electronic

no.

Switch no.

3-position

2-position

No. of

switches

No. of relay

US / Canada

AC120V

AC230V

Double 90°

Double 135°

SQM41.141A21 5Nm/15s 4 3 1 

SQM41.144R11 5Nm/15s 4 3 4 

SQM41.145A21 5Nm/15s 4 3 5 

SQM41.145R11 5Nm/15s 4 3 5 

SQM41.161A20 5Nm/15s 6 6 1 

SQM41.164R11 5Nm/15s 6 6 4 

SQM41.165R11 5Nm/15s 6 6 5 

SQM41.174R10 5Nm/15s 7 5 1 4 

SQM41.185R11 5Nm/15s 8 6 5 **) 

SQM41.241A11 10Nm/30s 4 3 1 

SQM41.241A21 10Nm/30s 4 3 1 

SQM41.241R11 10Nm/30s 4 3 1 

SQM41.244A21 10Nm/30s 4 3 4 

SQM41.244R11 10Nm/30s 4 3 4 

SQM41.245A11 10Nm/30s 4 3 5 

SQM41.245A21 10Nm/30s 4 3 5 

SQM41.245R11 10Nm/30s 4 3 5 

SQM41.254R11 10Nm/30s 5 4 4 **) 

SQM41.261A11 10Nm/30s 6 6 1 

SQM41.261A21 10Nm/30s 6 6 1 

SQM41.261R11 10Nm/30s 6 6 1 

SQM41.264A21 10Nm/30s 6 6 4 

SQM41.264R11 10Nm/30s 6 6 4 **) 

SQM41.265R11 10Nm/30s 6 6 5 

SQM41.267A21 10Nm/30s 6 6 7 

SQM41.271R10 10Nm/30s 7 5 1 1 

SQM41.274R10 10Nm/30s 7 5 1 4 

SQM41.275A21 10Nm/30s 7 5 1 5 

SQM41.275R10 10Nm/30s 7 5 1 5 **) 

SQM41.285R11 10Nm/30s 8 6 5 **) 

SQM41.357A23 18Nm/65s 5 4 7 

SQM41.357R11 18Nm/65s 5 4 7 **) 

SQM41.367A21 18Nm/65s 6 6 7 

SQM41.387R11 18Nm/65s 8 6 7 **) 

**) CSA approval in process

1) Specifications apply to ambient temperatures of 23 °C and a mains voltage of AC 120 V or

AC 230 V and a mains frequency of 50 Hz. With a mains frequency of 60 Hz, the running times are

approx. 17% shorter. Torques lower by the same rate.

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Type summary (cont´d) (other types on request) (cont’d)

Note

Not all types of actuators are available ex stock. Additional versions are available on

request.

Type of drive shaft Max.

torque

Shaft

no.

10 mm, woodruff key as per DIN 6888 10 Nm 1

9.5 mm, square shaft 15 Nm 4

10 mm D type shaft, compatible with SQM45... 10 Nm 5

14 mm with parallel key as per DIN 6885, compatible with SQM48... 20 Nm 7

Drive shafts:

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